Huest



(No Model.)

' R. W. WHITEHURST.

PLOW.

No. 319,872. Patented June 9, 1885.

WITNESSES: U I INVENTOR:

epw c'wv a; hmu, 78M MW }%Z/ m- By Ai-LCW Attorney.

NITED STATES ROBERT W. WHITEHURST, OF NORFOLK, VA., ASSIGNOR OFTWVO-THIRDS TO AURELIUS WVRENN AND MCDONALD L. VRENN, BOTH OF SAMEPLACE.

PLOW.

SPECIFICATION forming part of Letters Patent No. 319,872, dated June 9,1885.

Application filed February 2'. 1885. (N0 model.)

To all whom it may concern:

Be it known that I, ROBERT W. WHITE- HURST, a citizen of the UnitedStates, residing at Norfolk, in the county of Norfolk and State ofVirginia, have invented certain new and useful Improvements in Plows, ofwhich the following is a specification.

My invention relates to an improvement in plows. The special featurecomprising the invention consists of a standard having at its head ortop part a side recess with bolt-holes for the attachment of the beamand provided at the rear lower part of the recess with means foradjusting the-beam vertically.

The invention is illustrated in the accompanying drawings, in whichFigure 1 is a side view of a plow-standard with beam attached, andshowing the handles. Fig. 2 is a view of the head or top part withoutthe beam. Fig. 3 is a cross-section on the line as w of head or top partof the standard and beam. Fig. 4 is a View of the wedge. Fig. 5 is aside view showing a modification in the construction of the means foradj usting the beam.

The letter A designates the iron standard of a plow. In the presentinstance the front of the standard is curved, as at b, to prevent weedsor trash from accumulating in front and under the beam and choking. Aside recess, 0, is formed at the head or top part of the standard by theupper flange, c, and lower flange, 0 which continues down at the rearpart, In, and the pivot-bolt hole at passes laterally through the frontof the head, and a vertical slot, 6, for an adjusting-bolt through theback part of the head. The beam F, pref-- erably of wood, sets in theside recess, and its thickness vertically must be less than the changed,the rear bolt takes a higher or lower A portion of the beam position inthe slot.

will always rest on the lower flange, 0 By this construction of standardhead or top the beam may be firmly attached, and as the beam does notpass back of the-standard a short beam may be used.

The means for adjusting the beam consist of an inclined seat or notch,g, at the rear lower part of the recess, and a slot, h, is in the sideof the head, and has a pitch or incline corresponding with that of theseat or notch.

A wedge, I, occupies the notch g and sets on the incline, and a bolt, h,passes through the wedge and occupies the inclined slot and keeps thewedgein position. It will be seen 55 the wedge serves as a bearing forthe rear extremity of the beam, and when the wedge is moved backward itis also raised by moving upon the inclined seat g. Any back movement,therefore, of the wedge serves to raise the rear end, 3 of the beam andto correspondingly depress its front end. Areverse movement of the wedgeof course has an opposite effect. To adjust the beam, the rear bolt, 0,of the beam and the bolt h of the wedge must both be loosened. The beamis then set at the desired vertical position, and the wedge brought tobear up against the beam. Then both bolts are tightened, whereupon thebeam will be attached firmly.

In the drawings one side of the Wedge and the inclined seat are shownserrated or corrugated. This is to prevent the wedge from slipping; butthe serrations may be dispensed with, if desired. This construction ofstandard and meansfor adjustment of beam are applicable to both turn andcultivating plows, and also may be applied to standards which are notcurved in front.

In Fig. 1 of the drawings the rear top part, 0 7c, of the standard-headis shown curved; but this is immaterial. Instead of curved, this partmay be square, as seen in Fig. 5. This latter figure also illustrates amodification in the means for adjusting the beam. Instead of a wedge, avertically-movable seat, Z, is provided. This seat Z has a serratedshank, m, which is in contact with a serrated vertical flange, n, on thestandard. The shank is slotted, and a bolt, 1), passes through the slotand Ice flange and retains'the seat in any desired position. By raisingor lowering the seat Z the beam will have its adjustment changed thesame as though a wedge were used.

Having described my invention, I claim and desire to secure by LettersPatent of the 5 United States A plow-standard provided at the side ofits head or top part with a beam-recess formed by an upper flange, 0,which continuesdown at the rear part, 70, and is adapted to cover IO theend of the beam, and a lower flange, c",

and having a movable seat, substantially as described, at the rear lowerpart of said recess for adjusting the beam vertically, as set forth.

In testimony whereof I affix my signature I 5 in presence of twowitnesses.

ROBERT W. VVHITEHURST. \Vitnesses:

MALVERN H. Fosrnu, MOD. L. WRENN.

